In geometry, a translation is the shifting of a figure from one place to another without rotating, reflecting or changing its size. This is done by moving the vertices of the figure the prescribed number of spaces on a coordinate plane and then drawing the new figure.
These PFDs are designed to keep the wearer in a vertical position, but it is the wearersâ responsibility to maneuver themselves into a face-up position. Type III PFDs will keep unconscious wearers face-up just as well as a Type II vest.
If you place the EVD below the patient, you will normally see an increase of CSF drainage, due to gravity. For this reason, most EVD protocols recommend clamping it with any changes in patient's position that may place the EVD below the patient. Jun 12, '14.